Biofilter treatment module



FIG. 1 is a perspective view of a biofilter treatment module showing our design;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The right elevational view is identical to the left elevational view and therefore has been omitted. The back elevational view is identical to the front elevational view and therefore has been omitted.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a biofilter treatment module, as shown and described. 